
    <nz-input-group [nzSuffix]="suffixIcon">
      <input type="text" nz-input placeholder="Search" [(ngModel)]="searchValue">
    </nz-input-group>
    <ng-template #suffixIcon>
      <i class="anticon anticon-search"></i>
    </ng-template>
    <nz-tree
      #treeCom
      [nzData]="nodes"
      [nzSearchValue]="searchValue"
      (nzClick)="nzEvent($event)"
      (nzExpandChange)="nzEvent($event)"
      (nzSearchValueChange)="nzEvent($event)">
    </nz-tree>
  